/**
 * Khanegi tenants that MUST stay on userTheme (uiVariant=newTheme).
 * Never force these to modular in bulk brand scripts.
 *
 * Frontend: KhanegiModular/userTheme
 * API: /api/get_settings  (NOT Hamkar /site/settings, NOT userModular-only assumptions)
 */
export const FORCE_KHANEGI_NEW_THEME_DOMAINS = [
  'new.gholaktala.ir',
  'app.aygingold.ir',
] as const

export function normalizeTenantHost(value?: string | null) {
  if (!value) return ''
  return String(value)
    .trim()
    .toLowerCase()
    .replace(/^https?:\/\//, '')
    .split('/')[0]
    .split(':')[0]
}

export function collectTenantHosts(domain: string, domains: unknown, slug = '') {
  const hosts = new Set<string>()
  const primary = normalizeTenantHost(domain)
  if (primary) hosts.add(primary)
  const extra = Array.isArray(domains) ? domains : []
  for (const d of extra) {
    const n = normalizeTenantHost(String(d))
    if (n) hosts.add(n)
  }
  const s = String(slug || '').toLowerCase()
  if (s) hosts.add(s)
  return hosts
}

export function isForcedKhanegiNewTheme(domain: string, domains: unknown, slug = '') {
  const hosts = collectTenantHosts(domain, domains, slug)
  const slugLower = String(slug || '').toLowerCase()
  if (slugLower.includes('aygin') || slugLower.includes('gholak_new')) return true

  for (const h of hosts) {
    if (h === 'new.gholaktala.ir') return true
    if (h.includes('aygingold') || h === 'app.aygingold.ir') return true
  }

  for (const locked of FORCE_KHANEGI_NEW_THEME_DOMAINS) {
    const needle = normalizeTenantHost(locked)
    if (hosts.has(needle)) return true
  }

  return false
}